12120229 has 4 divisors (see below), whose sum is σ = 13222080. Its totient is φ = 11018380.

The previous prime is 12120223. The next prime is 12120239. The reversal of 12120229 is 92202121.

12120229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12120229 - 2⁹ = 12119717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550909 + ... + 550930.

It is an arithmetic number, because the mean of its divisors is an integer number (3305520).

Almost surely, 2^12120229 is an apocalyptic number.

It is an amenable number.

12120229 is a deficient number, since it is larger than the sum of its proper divisors (1101851).

12120229 is a wasteful number, since it uses less digits than its factorization.

12120229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101850.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12120229 is about 3481.4119262161. The cubic root of 12120229 is about 229.7049082615.

The spelling of 12120229 in words is "twelve million, one hundred twenty thousand, two hundred twenty-nine".